ABB PCO 011 To meet the European Union Directives, according to standard EN 60204-1, Safetyof Machinery, the disconnecting device must be one of the following types:â?¢ switch-disconnector of utilization category AC-23B (EN 60947-3)â?¢ disconnector that has an auxiliary contact that in all cases causes switchingdevices to break the load circuit before the opening of the main contacts of thedisconnector (EN 60947-3) circuit breaker suitable for isolation in accordance with EN 60947-2.
